Separator.



No. 69I,877. 'I I Pate'nted lan. 28, |902.

C. H. SCOTT.

SEPARATUR,

(Applicationl led Aug 20, 1.901.)

(No Model.) 4 Sheets-Sheet l.

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No. 691,377. Patented 1an. 2a, |902.

C. H. SCOTT.'

SEPARATR. i' (Applinacion med Aug. 2o, 1901.) (No Model.) A 4 Sheets-Sheet 2` /l 5I l5 Y @L 55 l l H 59 9,9 V5

FIG. 2-

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Patented lan. 28, |902. C. H, SCOTT.

S E P A H AiT U'R.

(Application' led Aug. 20, 1901.)

4 Sheena-Sheetl 3.

(No Model.)

FIG. 5.

lNvEN-ron CHARLES I-LSCOTT. .BY @Gwyn/L WVTNESSES H\S ATTORNEYSLaw/Qvl THE Ncnms PETERS co. Puoauwo.. WASHINGTON. o. c.

No. 69|,877. Patented 1an. 28, |902. C. H. SCOTT.

SEPARATOR.

. (Application led Aug. 20, 1901.) (No model.) 4 Sheets-Sheet 4.

lNvENToR c RLES H. scor.

HIS TTORNE`{5 TH: Nonms PETERS o. PHoTo-LITHD.. WASHINGTON, n. c.

UNrrnD STATES PATENT Grrrcn.

CHARLES H. SCOTT, OF MINNEAPOLIS,-MINNESOTA.

SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 691,877, dated January 28, 1902.

` Application iiled August 20', 1901. Serial No. 72,658. (N0 model.)

T0 all whom it may concern,.-

Be it known that l, CHARLES I-I. Soorr, of Minneapolis, Hennepin county, Minnesota, have invented certain new and useful Improvements in Separatore, of which the fol* lowing is a specification.

The invention relates to machines for separating coarse and fine material wherein advantage is taken of the diderence in size or shape between the large and small particles, and is designed as an improvement over the construction of the machine shown in application for Letters Patent of the United States iled by me November 13, 1899, Serial No. 736,728, renewed June 24, 1901, Serial No. 65,572.

The invention consists generally in providing improved means for driving the perforated disks.

Further, theinvention consists in providing an improved hopper.

Further, the invention consists in providing means for adjusting the backing-plates and disks.

Further, the invention consists in means for cleaning the pockets of the grain therein as the disks pass over the discharge-openings.

Further, theinvention consists in improved spouting means for carrying away the grain; and, further, the invention consists in various constructions and combinations, all as hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specication, Figure l is a plan View of the backing-plates and disks and their connections, the machineframe,`for the sake of clearness, being omitted. elevation. Fig. 3 is a vertical section on the line y y of Fig. 1. Fig. 4 is a section on the line e e' of Fig. 1 through the upperdisk and its backing-plate. Fig. 5 is a section on the line :r .r of Fig. 1, also through the upper plate and disk only. Figs. 6 and 7 are details of the means for adjustably supporting thebacking-plates.

In the drawings, 2 represents thel'lpright posts at the back of the machine, 3 the posts at the front, and 4 .the connecting cross-bars.

At the back of the machine at the top of the posts 2 I provide a universal hopper 5,

Fig. 2 is a side' having a closed bottom and a series of disi charge-openings 6 in its side Wall next to the machine correspondingin number to the number of disks employed. In this machine I have shown three disks arranged one above the other a suitable distance apart. It will be understood, however,that this number may be increased or decreased at- Will, according to the desired capacity of the machine. Within the openings 6 I provide short spouts and beneath their discharge ends arrange a series of backing-plates 8, one beneath each spout. These plates are inclined from the back to the front of the machine substantially parallel with the spouts 7 and are provided at their lower edges on each side with lugs 9, having holes to receive bolts 10, which support the lower sides of said plates and form pivots to permit adjustment thereof to alter the pitch or inclination. The upper edges of said plates are provided with threaded bolts 11, passing through holes in brackets 12 and adjustably supported therein by nuts 13. By means o f these bolts and the hinged connections of said plates at their lower edges they may be vertically oscillated and their pitch or inclination changed at will. The plates are preferably provided with transverse strength ching-ribs 14 and with hubs 15'. In their upper sides the plates are provided with sectoral discharge-openings 16, through which the grain falls from the revolving disks.

parts closely together while permitting the revolution of said disks. Near the spouts 7, in position to deliver the material upon the down side of said disks, I provide hoppers 22, each having a closed bottom and top and connected at their upper ends with the spouts 7 by flexible spout connections 23. These hoppers are supported at their outer edges on guard-plates 24, of sheet metal or other suitable material, placed on edge around the down side of said disks and secured to the back plates by brackets 25 or in any other suitable way. The inner walls or sides of the hoppers project beyond the tops and bottoms thereof and are secured to blocks 25', secured on projecting ends of the studs 19. The hoppers are thus held stationary above the revolving disks, and each is provided with a swinging door 26, having a curved arm 27, slidable in a stud 2S and adjustable therein by a thumb-screw 29. The bottom of each hopper projects beyond the top of the same and its edge forms a feed-board, over which the grain slides in a thin even sheet upon the down side of the disk, and this stream of grain is regulated by the swinging door. When one of the disks is not in use for any reason, the door may be closed tight, and the grain will be kept from passing out of the hopper. Opposite the extended side of the hopper (see Fig. 1) is a block 3l, and between said extension and block I provide a rod 32, that passes through a loop in the end of the sectoral-shaped canvas apron 33, that rests upon the down side of the disks and is provided With a series of slats 34. This apron corresponds substantially in its construction and functions to the one shown in my application heretofore referred to and is not claimed in this application. These blocks 25 have projecting pins or fingers 37 to enter loops 38 on sheet-metal plates or wings 39,

whose lower edges drag over the surfaces of said disks on their up sides. The loops are arranged near the upper edges of said plates, and hooks 40 are correspondingly arranged at the opposite or outer ends of said plates and rest upon the guard-plates 24.

A conical brush 43 has its shaft mounted in bearings 44, provided, respectively, on the block 25 and the guard-plate 24. One brush is provided for each disk and is located over the discharge-opening in the backingplat'e. The bristles of the brushes bear upon the surfaces of their disks, entering the perforations therein and forcing the grain out of the pockets into the discharge-openin g. The brushes are driven by contact with their disks, and as the pockets pass beneath the brushes all the grain therein will be forced out, so that the disks as they approach their hoppers to receive a fresh supply of grain will be discharged of their load and ready to be filled again. j

The edges of the disks are held down upon their plates by guides 46, and near said guides on each disk I provide a gear-ring 47, secured thereto and meshing with a pinion 48, provided on a shaft 49, mounted in suitable bearings in a bracket 50. Each shaft is provided with a sprocket 5l, and the shaft of the upper disk has a driven pulley 52, by means of which the disks are driven from a suitable source of power. Idle sprockets 53 are provided on the cross-bars 4, and a chain belt 54 connects said idle sprockets and the sprocket 51, whereby all the said disks will be driven simultaneously.

In front of the machine I provide two upright spouts 55 and 56, the former for the wheat and the latter for the oats. The spout 55 has a series of holes 57 inits wall next to the machine, and shallow pans or spouts 58 are pro vided beneath the backing-plates, having their lower ends in the openings 57 and provided with enlarged or expanded upper portions 59, that correspond substantially to the shape of the dischargeopenings in the backing-plates and are arranged beneath the same to receive the wheat as it falls from the pockets. The other spout 56 is also provided with openings in its wall next to the machine, one for. each disk, and short spouts 60 are provided in the guard-plates on the down side of the disks and are adapted to receive the oats or larger grains and direct them into their separate spouts.

In operation the mixture of wheat and oats, generally known as succotash, or whatever mixture of different-sized grains or particles of' material it is desiredto separate is placed in the receiving-spout at the back of the machine or is allowed to feed therein from a bin. The grain upon entering this spout will iiow into the hoppers of the respective disks and as soon as the hopper-doors are opened will flow in a thin sheet out of the hoppers upon the revolving disks, which have been set in motion at the desired speed before the opening of the hoppers. As the mixture of different-sized kernels of grain falls upon the disks the short kernels will drop in the pockets and the longer kernels, being held datwise by the pressure of the canvas apron, will be carried along on the surface of the disks until reaching the point where they are free from the pressure of the apron, and will slide down to the lower edge of the disks and out of their respective spouts. The shorter kernels of grain, such as wheat, having lodged in the little pockets formed by the stationary plates 'and the revolving disks, will be carried toward the up side of the disks to the dischargeopenings. As the disks pass under the gravity-held plates any kernels of oats or of the longer grains that happen to be tilted into the pockets and project out of the, same will be scraped out and allowed to slide down and mingle with the other grain of similar nature. As the disks pass under the revolving brushes the pockets will be effectually cleared of all the short kernels, which, droppinginto the pans beneath, will slide down to the spout provided for their reception.

The separation above described corresponds to that set forth in my application above referred to, except as regards some of the details of the mechanism fr effecting the same, and the operationof the disks corresponds to the operation of the one described in my prior application, except that in this IOT) IIO

case the disks are driven from their circumference and are arranged in series.

I claim as my invention- 1. The combination, with a stationary inflexible plate or member arranged at an inoline, of a revolving disk resting thereon and having a close grain and dirt tight joint therewith, said disk having a series of perforations forming with said plate a series of little pockets wherein the fine material falls and is carried over said plate, and means for adj ustiug said plate and diskto vary their pitch or inclination.

2. The combination, with a series of in clined plates, of disks resting thereon, means for revolving said disks simultaneously, each of said disks having a series of pert'orations forming with their plates a series of pockets, hoppers provided above said disks, and a spout common to all of said hoppers and having suitable connections respectively therewith, substantially as described.

3. The combination, with a stationary iniiexible plate arranged at an incline, of a revolving disk resting thereon and forming a close joint therewith, said disk having a series of perforations forming with said plate a series of little pockets, a hopper having animperforate bottom provided over said disk, and an adjustable gate device provided on said hopper and adapted to deliver the grain therefrom in a thin sheet upon said disk.

4. The combination, with a suitable frame, of a series of inclined backing-plates pivotally supported on one side therein, means for vertically adjusting the opposite side of said plates to vary their pitch or inclination, revolving disks resting upon said plates, said disks having a series of perforations forming with said plates little pockets or receptacles, and suitable hoppers wherefrom the grain is discharged in a thin sheet upon said disks, substantially as described.

5. The combination, with an inclined plate, of a revolving disk thereon, said disk having a series of perforations forming with said plate a series of pockets, a stud centrally connecting said plate and disk, a gear-rin g provided near the circumference of said disk, and a driven pinion meshing with said ring, whereby said disk is revolved, substantially as described.

G. The combination, with an inclined backing-plate having a discharge hole or opening in its up side, of a disk centrally mounted on said plate and forming a close grain and dirt tight joint therewith, said disk having a series of perforations forming a series of pockets with said plate, a hopper provided above the down side of said disk wherefrom the grain is delivered in a thin sheet, a gear-ring secured to said disk near its circumference, and means for driving said ring.

7. The combination, with a series of inf.

clined backing-plates arranged one above the other and suitably spaced in their up sides` and provided'with discharge-openings, of perforated disks resting upon said plates and forming close joints therewith, the perforations in said disks forming pockets with said plates wherein the short kernels of grain fall, hoppers provid ed above said disks, gear-rings near the circumference of said disks,.means for driving said rings and disks, spouts near the down side of said disks to receive the longer grains, and pans provided beneath said discharge openings to receive the shorter grains that fall from said pockets, substantially as described.

8. The combination, with an inclined backing-plate having a discharge-opening in its up side, of a disk resting upon said plate and having a series 0f perforations forming pockets therewith, means for revolving said disk, and a brush device provided above said disk and discharge-opening, substantially as described and for the purpose specified.

9. The combination, with an inclined backing-plate having a discharge-opening in its up side, of a disk resting upon said plate and forming a close grain-tight joint therewith, said disk having a series of perforations forming pockets with said plate, means for revolving said disk, and a revolving brush provided above said discharge-opening and disk and driven by frictional contact with the latter, substantially as described and for th purpose specified.

10. The co mbination,with an inclined backing-plate having a discharge-opening in its up side, of a revolving disk mounted on said plate and having a series of perforations forming pockets therewith, means for revolving said disk, and plates provided on the up side and having their lower edges in gravity-held contact therewith, substantially as described and for the purpose specified.

ll. 'Thecombinatiomwith aninclined backing-plate having a discharge-opening in its up side, of a disk resting on said plate and having a series of holes or perforations forming pockets therewith, means for revolving said disk, means for delivering grain in a thin sheet on the down side thereof, scraper-plates provided on the upside of said disk and having their edges in gravity-held contact therewith, and a revolving brush provided above said discharge-opening and disk and driven by frictional contact with the latter, substantially as described.

l2. A separator,comprising an inclined normally stationary plate of inflexible material having a flat surface, in combination with a perforated disk movable over said plate and having a close joint therewith, the perforations in said disk forming with said plate a series of little pockets wherein the fine material falls and is carried over said stationary plate, means provided near the outer edge of said disk for driving the same, and meansfor adjusting said plate and disk to alter their pitch or inclination.

. 13. Aseparator,comprisinganinclinednormally stationary plate of inflexible material having a dat surface, in combination with a IOO In Witness whereof I have hereunto set my hand this 15th day of August, 1901.

CHARLES II. SCOTT.

In presence of- RICHARD PAUL, M. E. GOOLEY. 

